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Electronic Services

Tax Professional Mandate

Effective January 1, 2012, paid preparers who file more than ten (10) Illinois Individual Income Tax returns must file those returns electronically.

The majority of returns, over 80%, are already filed electronically.  Electronically filed returns are processed more quickly, resulting in fewer errors and faster refunds to taxpayers.

If you are already filing your clients’ individual income tax returns electronically - thank you for your valued partnership.  If you have not joined the 4.9 million electronic filers in Illinois, we look forward to working with you soon!

If you have any questions, please contact us at (866) 440-8680.

Opt-out Information If your client refuses to allow you to electronically file their return, you can remain in compliance with the mandate by having your client complete and sign Form IL-8948, Electronic Filing Opt-Out Declaration. Retain all Forms IL-8948 you receive from your clients in your files for three years. The department may request copies at anytime.